To lock paid phone numbers
So you can not call from Provided fee-based Hotlines, you can terminate your connection for such numbers. In General, you can choose from eight lock-classes, and will receive a Pin that protects your port-lock:
- Telecom: In Telecom you need to set up a lock. The add-on package called "port lock". The deployment will cost you once 10,16 Euro, but is thereafter free of charge. The additional Option you can enable either in the Telekom Shop or on the Freephone number 0800 33 01000.
- Arcor: Also in the case of Arcor , you can call numbers blocked. Which numbers are affected, and what exceptions you want to determine, you can put in your online account.
- Unitymedia: In the case of Unitymedia, you can get a lock completely free of charge set up anytime and turn it off again. To do this, you call the Unitymedia network toll-free number 0800 / 700 11 77 .
- 1&1: 1&1 you can activate the same via the 1&1 Control-Center to make. In the sections "telephony" to manage the unwanted phone numbers.
- In addition to the listed providers have many other companies of similar packages to choose from. Look your best on the appropriate website, in the FAQ or in the terms and conditions of the respective provider.

Port-lock at the Telekom
As incoming and outgoing phone numbers on the Fritzbox lock, learn them in a different practical tip.
